Reenforced composition board



Marh 3o, 1 926.

T.B.MUNROE REENFORCED COMPOS ITION BOARD 2 Sheets-Sheet Filed sept. 4, 1925 lrll n March 30 1926. 1,578,344

T. B. MUNROE REEFORCED COMPOSITION BOARD Filed Sept. 4, 1925 2 SheetS-Shee 2 .Y Patented Mar. 30,- 1926.

UNITED STATES I 1,578,344 PATENT ori-1&1.4

TREADWAY B. MUNROIL OF CHICAGO, ILLINOIS, ASSIGNOR TO DAHLBEBG & COM- PANY, INC., OF CHICAGO, ILLINOIS, A CORPORATION OE DELAWARE.

:aEnNroncEn coMrosI'rIoN BOARD.

Application led September 4, 1925. I Serial No. 54,530.

To4 all whom t may concern:

Be it known that I, TREADWAY B. MUN- Ron, a citizen of the United States, residing at Chicago, in the county of Cook and 5 State ofIllinois, have invented certain new andI useful Improvements in Reenforced Composition Board; and I do hereby 'de clare the following to be a full, clear, and

exact description of the invention such aswill enable others skilled in the art to which it appertains to make and use the same. n This invention relates to reenforced composition boards especially adapted for roofing material for partitions, floors, etc., and has for its object to improve the constructions heretofore proposed. With this and other objects in View, the

.invention consists in the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification, in which like numerals designate like parts in all the views -Figure 1 is a diagrammatic plan View partially broken away of a composition board made in accordance with this invention; Figure 2 is a side elevational View of the parts shown in Fig. 1;

Figure 3 is a plan view partially broken away of a slightly modified form of the construction shown in Fig. 1;

Figure 4 is an end view of the parts shown .in Fig. 3;

Figure 5 is a plan view partially broken awayof a still further modified form of the invention; I .I 40 Figure 6 is an edge view of the parts shown in Fig. 5; and

Figure 7 is a perspective view of the reenforcing member employed in the form shown in Figs. 3 and 4.

The composition board herein disclosed may be made of any suitable material but is preferably made out of the fibrous material known on the market as celotex,

This material is madeY from bagasse fibers which have been only partially cooked and therefore retain substantially all their original strength, and the material has numerous interstices or 'air `cells so that its heat insulating qualities are very high. Further,l the board is usually made in any desired lengths and thicknesses but generally about one-half inch thickness, and its coherence, tenacity and strength is such that it may be cut'and sawed very much like lumber and can be substituted for lumber in many constructions.

Referring more particularly to Fig. 1, the board there illustrated may be made of an outer layer l of celotex, a lowerlayer 2 of celotex and intermediate layers 3, 4, 5 and 6 of less dimensions than` are the layers 1 and v2. In order tostrengthen this compo sition board there is provided on one end or -edge of the same the U-shaped metal member 7 which embraces the outer edges of the boards 5 and 6 and which extends a considerable 'distance beyond the outer edges of the outer boards 1 and 2, so as to form a tongue or engaging member withvan adjacent composition board. On .the opposite end oredge of the completed composition board. there is provided another lU-shaped member S which is larger in dimensions than is the member 7 fand which instead of projecting beyond the outer edges of the outer layers 1 and 2, projects inside said edges so as to form a groove as illustrated. Further, at or near the middle of the completed board there is provided the U-shaped metal member 9 which embraces one edge of the pair of boards 3 and 4, and 'there is also provided another U.shaped metal member 10 which is disposed oppositely to the member 9 and which embraces one of the edgesof the 1ntermediate. members 5 and 6. y

As best illustrated in Fig. 1, the members 7, 8, 9 and 10 may extend throughout the length or width of the completed board 12 so as to reenforce and strengthen the same. The various boards lettered 1, 2,3, 4, 5 and 6 are or maybe connected by any suitable means or material, but I prefer Vto employ a cement material suc-h for example as Portpair of boards 15 and 16.of less dimensions p than are the boards 3 and 4 shown Fig. 2

extends toward .the right, as seen in Fig.

4, between the boards 2 and 6 and, is bent upwardly at the point 22,-then bent again `at the point 23 and extends toward the right as seen in Fig. 4, between the boards 1 and 15, to the point 24 where it is bent downwardly and again bent at the point 25, where it extends still further toward the ri'ght'between the boards 4 and 2, until it reaches the extreme end of the board 2 as illustrated. Between the boards 1 and 2 and contacting with the extreme right-hand edges of the boards 3 and 4 is the U-sha ed metal member 26 forming a groove 2 into which a tongue 21 of a similar board is adapted to t when the boards' or units are assembled together, all as will be clear from Figs. 3, 4 and 7.

Coming now to the still further modified form of construction shown in Figs. 5 and 6, the parts that are similar to the parts in Figs. 1 and 2 are lettered by the same reference' numerals. That is, this construction is substantially the same as that shown in Figs. l and 2, except the U-shaped member 8 forming the groove 30 is reenforced on its upperl and lower flanges by the strengthening or reenforcing metal strips 31 and 32.

It will now be clear from the foregoing, celotex material or similar fibrous material may be cut up into suitable lengths and dimensions, and the parts thus produced firmly cemented together with the reenforcing materials such as those lettered 7, 8, 9, 10, 26, 31 and 32, disposed in strengthening relations or reenforcing relations to the cutf up parts whereupon in each instance a relatively stron@r reenforced composition board will result having a metal covered tongue 7 on one edge or end thereof and a metal groove 8 on the other end or edge thereof so that when similar units are brought together, the tongue 7 of the one unitwill fit into the groove 8 of another unit, and thus may be large surfaces covered by these said boards. In addition to this, each board is or may be strengthened throughout its middle portions as by-the metal members -9 and 10- orvby the single sheet of material 17 illustrated in Fig. 7 which is provided with the upwardly extending bent strengthened portion 35 shown.

, It willbe clear that by utting together two or more composition Iboards made as above disclosed and joined as described,

partitions, walls of houses, and lroofs of ouses may be readily constructed. Of

course, at the joints between two or more finished boards, supporting members of various kinds (not shown) are provided.

It is obvious that those skilled in the art may vary the details of construction as well as the arrangement of parts and also the composed of a plurality of layers of fibrous material secured together, and provided on onetextremity with a sheet metal reenforced tongue, on another extremity with a sheet metal reenforced groove, and with sheet metal reenforcing material disposed on the interior of said board.

2. A reenforced composition buildin board composed of a plurality of layers o brous heat insulating bagasse material secured together, and provided onfone extremity with a sheet metal reenforced tongue, on another extremity with a sheet metal reenforced groove, and withsheet metal reen,- forcing materlal disposed on the interior of said board.

3. A reenforced composition board comprising a plurality of strata of heat insulatmg material secured together, said board rovided on one extremity with a reenforclng tongue oflmetallic material and on another extremity with a groove of reenforcing metallic material and said board further rovided internally with metallic reenforclng material.

4. A building board comprising a plurality of layers of fibrous material secured toether with metallic reenforcing material t erebetween, one extremity of said board provided with a tongue reenforced by metallic material, and the opposite extremity of said vboard provided with a groove reenforced by metallic material.

5. A buildin board comprising a plurality of layers o fibrous material secured together with a sheet of metallic reenforcing material therebetween, one extremity of said board provided with a tongue'reenforced by the sald sheet of metallic material, and the `opp'osite extremity of said board provided material therebetween, one extremity of said board provided with a tongue reenforced by said sheet of metallic material formed thereover, and the opposite extremity of said board provided with a groove reenforced by said sheet of metallic material formed there- 1n.

7. In a building board comprising an upper and a lower outer sheet of heat insulating material the combination of a plurality of inner sheets likewise of heat insulating material, said inner sheets so disposed relatlvely to said outer sheets as to provide at one extremity of said board a tongue and at the opposite extremity of said board a groove; a sheet of metallic material disposed between said outer sheets and provided with opposite edges adapted to reenforce said tongue and groove; and means to secure all of said sheets to ether.

8. In a buil ing board comprising an upper. and a lower outer sheet of heat insulating material the combination of a plurality of inner sheets likewise of heat insulating material, said inner sheets so disposed relatively to said outer sheets as to provide at one extremity of said board a tongue and at the opposite extremity of said board a and means to secure all of said sheets to- I gether.

9. In a building board comprising an upper and a lower outer sheet of fibrous bagasse heat insulating material the combination of a plurality of inner sheets like- Wise of fibrous bagasse heat insulating material, said inner sheets so disposed relatively to said outer sheets as to provide at one extremity of said board a tongue and at the opposite extremity of said board a groove; a sheet of metallic material disposed between said outersheets andprovided with opposite edges adapted to reenforce said tongue and groove; and means to secure all oi' said sheets together.

In testimony whereof I aflix my signature.

TREADVAY B. MUNROE. 

